function getLocation()
{
  var x=document.getElementById("qa_map_hanoi");
  if (navigator.geolocation)
    {
    navigator.geolocation.getCurrentPosition(showPosition,showError);
    }
  else{x.innerHTML="Geolocation is not supported by this browser.";}
}

function showPosition(position)
{
  var latlon=position.coords.latitude+","+position.coords.longitude;

  var img_url="http://maps.googleapis.com/maps/api/staticmap?center="
  +latlon+"&zoom=14&size=250x150&sensor=false";
  document.getElementById("mapholder").innerHTML="<img src='"+img_url+"'>";
}

function showError(error)
{
switch(error.code) 
  {
  case error.PERMISSION_DENIED:
    x.innerHTML="User denied the request for Geolocation."
    break;
  case error.POSITION_UNAVAILABLE:
    x.innerHTML="Location information is unavailable."
    break;
  case error.TIMEOUT:
    x.innerHTML="The request to get user location timed out."
    break;
  case error.UNKNOWN_ERROR:
    x.innerHTML="An unknown error occurred."
    break;
  }
}